What is magnetic field lines? How is direction of magnetic feild at a point in amagnetic?
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Magnetic field lines:
The line through which the north pole of a compass move when placed near to a bar magnet
Direction of the magnetic field:
● it is the direction of North Pole of a compass when placed near a bar magnet
● we believe that the magnetic field lines originate from north pole and merge at South Pole
● inside the bar magnet the the magnetic field lines originate from South Pole and merge at North Pole
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